This writer, who so loves Pynchon beyond GR, must be worth reading.
NP: I follow that Dr. Johnson on twitter and it is a decent ventriloquist act, imho. ( I know me some Dr. Johnson)
http://www.independent.co.uk/arts-entertainment/books/reviews/book-of-a-lifetime-mason--dixon-by-thomas-pynchon-1990622.html